Overview
JIANGKAI NBC-HW-80 (-40 ℃) Constant Temperature and Humidity Chamber is a test equipment used to simulate high temperature, low temperature and constant or alternating heat and humidity environment. The equipment has an Interior volume of 80L, a Temperature range of -40 ℃ to 150 ℃, and a humidity control range of 20% RH to 98% RH. It mainly conducts environmental adaptability tests on parts and materials of electronic, electrical, household appliances, automobiles and other products.
Features
1. Adopt fully dense Compressor imported from France and environmentally friendly refrigerant R404A, with fin condenser and evaporator, to form an efficient and stable refrigeration system.
2. Equipped with original 7-inch Chinese LCD touch screen controller (TEMI880) imported from Korea, high accuracy (temperature +/- 0.1 ℃, humidity +/- 1% RH), support Linear dispersion display and multi-group PID control.
3. The program capacity is large, with a maximum of 100 sets of programs, a total of 5000 program segments, and it has the function of power-off memory and automatic connection execution after power-back.
4. The inner box is made of stainless steel plate (SUS #304), the insulation layer is rigid polyurethane foam and Glass cotton, and the box door is equipped with three-layer vacuum observation window, which has good insulation and observation performance.
5. Key electrical components are made of internationally renowned brands, such as Denmark Danfoss expansion valve, Japan Saginomiya solenoid valve, Taiwan Taian contactor, etc., to ensure equipment Reliability and durability.
Principle
The equipment works together through the refrigeration system (Compressor, condenser, evaporator, etc.) and the heating system (heating rod) to achieve precise control of the temperature in the box. Humidity control is adjusted by generating water vapor from the humidification pipe and dehumidifying the refrigeration system. The control system collects the signals of the Pt100 temperature sensor and humidity sensor in the box in real time according to the set temperature and humidity program, and automatically adjusts the output of the refrigeration, heating, humidification and other executive components through PID calculation, so that the environment in the box is stable at the set temperature and humidity conditions to simulate the test environment required by the product.
Applications
Electronic, electrical, household appliances, automobiles and other product parts and materials environmental adaptability testing
Standards
GB5170.2, 3, 5, 6-95 "basic parameters of electrical and electronic products environmental test equipment method of verification low temperature, high temperature, constant heat and humidity, alternating humidity cabinet test equipment", GB 2423.1-89 (IEC68-2-1), GB 2423.2-89 (IEC68-2-2), GB/T 2423.3-93 (IEC68-2-3), GB/T 2423.4-93 (IEC68-2-30)
Steps
1. Turn on the power supply and turn on the main switch of the device.
2. Set the required temperature and humidity program on the touch screen controller, including parameters such as temperature, humidity, time, and cycle times.
3. Put the sample to be tested into the test chamber, close the box door and ensure sealing.
4. Start the set test program on the controller.
5. The equipment runs automatically, and the temperature and humidity Linear dispersion and program execution status can be observed in real time through the touch screen.
6. After the test is completed, the equipment stops running according to the program and the sample is taken out.
7. For follow-up testing, edit or call the Miscellaneous procedural repeability steps above.
Notice
• Equipment should be installed in a well-ventilated, non-direct sunlight, away from heat sources and flat ground.
• The total weight and placement of the test samples should not affect the air circulation in the box, and there should be an appropriate space between the samples.
• During the operation of the equipment, do not open the box door frequently to avoid affecting the temperature and humidity stability and test results.
• After conducting a low temperature or high humidity test, if you need to open the box door, be sure to pay attention to condensation or frost to prevent water from dripping onto electrical components.
• Regularly check and clean the condenser heat dissipation fins to ensure good heat dissipation to maintain the efficiency of the refrigeration system.
• Humidification water needs to use purified water or distillation water to prevent scale from affecting the humidifier.
• When the equipment malfunctions and alarms, you should first check the fault information displayed on the touch screen, and contact a professional according to the prompts to deal with it. Please do not disassemble and repair it yourself.
• When not in use for a long time, the total power supply of the equipment should be cut off, and the box should be cleaned and kept drying.
